Circuit/System Verification

WARNING: This page is about a different car, the 2007 Pontiac Montana SV6, 2007 Chevrolet Uplander, and 2007 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: This procedure is for diagnosing problems with the OnStar® button assembly LED.

Ignition ON, verify that the OnStar® status LED does not turn green.

If it turns green, refer to Testing for Intermittent Conditions and Poor Connections .